Patterns of temporal interaction in the detection of gratings
Patterns of temporal interaction in the detection of gratings
复制标题
光栅检测中的时间相互作用模式
DOI：
10.1016/0042-6989(77)90063-3
复制
发表时间：
1977
期刊：
影响因子：
1.8
通讯作者：
J. Nachmias
中科院分区：
文献类型：
--
作者：
A. Watson;J. Nachmias
阈值对比度确定为对简短的，时间上分离的光栅相同的频率，相同或相反的相位，和各种对比度。对于低空间频率，一系列的分离被发现，结果在促进相反相位对和抑制之间的同相位对。对于更高的空间频率，该范围不存在或几乎不存在。在固定间隔的阈值对中的两个光栅的对比度之间的关系建议在线性时间滤波器的平方积分输出上操作的检测器，或者在这种滤波器的噪声扰动输出的时间上的概率求和。
Threshold contrasts were determined for pairs of brief, temporally separated gratings of the same frequency, same or opposite phase, and various contrast ratios. For low spatial frequencies, a range of separations is found that results in facilitation between opposite-phased pairs and inhibition between same-phased pairs. For higher spatial frequencies, this range is absent or nearly absent. The relation between the contrasts of the two gratings in a threshold pair of fixed separation suggests either a detector operating on the squared, integrated output of a linear temporal filter, or probability summation over time of the noise-perturbed output of such a filter.